I. Overview

 FLN36-24/630-20, FLRN36-24/125-31.5, (HVF6-24/T630-2)0.HVF6-24RD/125-31.5) are new generation products developed by Daya Electric Group according to market needs. It is a double-break rotary burden switch using SF6 gas as the insulating and arc-extinguishing medium. It is suitable for 24KV power distribution systems. There are no restrictions on whether the switch can be installed vertically or horizontally. The typical installation method in the ring main unit is to set up a steel partition between the room and the busbar room and install it horizontally. The busbars and cable joints are isolated, complying with the strictest safety requirements for operation and maintenance.

As the country continues to deepen the transformation and construction of urban and rural power grids, the demand for load switches, ring main units, small switching stations and box substations across the country is also increasing. In view of the situation in 2006, our company agreed, developed and produced an SF6 burden switch with stable performance, high technical parameters, fully insulated, fully sealed and maintenance-free this year. On this basis, we designed the top unit and bottom unit of the most advanced SF6 burden switch high-voltage module, which is suitable for the national conditions in terms of price and can completely replace imported products in terms of performance. Due to its simple structure, maintenance-free, reasonable price and other advantages, the sulfur hexaoxide switch produced by Daya Electrical Appliance Group is deeply favored by the market.

2. Indoor use environment

a)Ambient temperature

Maximum temperature: +40℃ Minimum temperature: -15℃

Daily average: ≤35℃

environment humidity:

Daily average relative humidity: ≤95% Monthly average relative humidity: ≤90%

Daily average vapor pressure: ≤2.2×10-3Mpa

Monthly average vapor pressure: ≤1.8×10-3MPa

b) Altitude: no more than 1000m;